提交 0e094b38 编写于 作者: C Cary Xu

other: merge 3.0

......@@ -2,7 +2,7 @@
# taos-tools
ExternalProject_Add(taos-tools
GIT_REPOSITORY https://github.com/taosdata/taos-tools.git
GIT_TAG 2af2222
GIT_TAG 833b721
SOURCE_DIR "${TD_SOURCE_DIR}/tools/taos-tools"
BINARY_DIR ""
#BUILD_IN_SOURCE TRUE
......
......@@ -10,7 +10,7 @@ One difference from the native connector is that the REST interface is stateless
## Installation
The REST interface does not rely on any TDengine native library, so the client application does not need to install any TDengine libraries. The client application's development language only needs to support the HTTP protocol.
The REST interface does not rely on any TDengine native library, so the client application does not need to install any TDengine libraries. The client application's development language only needs to support the HTTP protocol. The REST interface is provided by [taosAdapter](../taosadapter), to use REST interface you need to make sure `taosAdapter` is running properly.
## Verification
......
---
sidebar_position: 1
sidebar_label: C/C++
title: C/C++ Connector
---
......
---
toc_max_heading_level: 4
sidebar_position: 2
sidebar_label: Java
title: TDengine Java Connector
description: The TDengine Java Connector is implemented on the standard JDBC API and provides native and REST connectors.
......
---
toc_max_heading_level: 4
sidebar_position: 4
sidebar_label: Go
title: TDengine Go Connector
---
......
---
toc_max_heading_level: 4
sidebar_position: 5
sidebar_label: Rust
title: TDengine Rust Connector
---
......
---
sidebar_position: 3
sidebar_label: Python
title: TDengine Python Connector
description: "taospy is the official Python connector for TDengine. taospy provides a rich API that makes it easy for Python applications to use TDengine. tasopy wraps both the native and REST interfaces of TDengine, corresponding to the two submodules of tasopy: taos and taosrest. In addition to wrapping the native and REST interfaces, taospy also provides a programming interface that conforms to the Python Data Access Specification (PEP 249), making it easy to integrate taospy with many third-party tools, such as SQLAlchemy and pandas."
......
---
toc_max_heading_level: 4
sidebar_position: 6
sidebar_label: Node.js
title: TDengine Node.js Connector
---
......
---
toc_max_heading_level: 4
sidebar_position: 7
sidebar_label: C#
title: C# Connector
---
......
---
sidebar_position: 1
sidebar_label: PHP (community contribution)
sidebar_label: PHP
title: PHP Connector
---
......
---
title: REST API
sidebar_label: REST API
description: 详细介绍 TDengine 提供的 RESTful API.
---
为支持各种不同类型平台的开发,TDengine 提供符合 REST 设计标准的 API,即 REST API。为最大程度降低学习成本,不同于其他数据库 REST API 的设计方法,TDengine 直接通过 HTTP POST 请求 BODY 中包含的 SQL 语句来操作数据库,仅需要一个 URL。REST 连接器的使用参见 [视频教程](https://www.taosdata.com/blog/2020/11/11/1965.html)。
......@@ -10,7 +12,7 @@ title: REST API
## 安装
RESTful 接口不依赖于任何 TDengine 的库,因此客户端不需要安装任何 TDengine 的库,只要客户端的开发语言支持 HTTP 协议即可。
RESTful 接口不依赖于任何 TDengine 的库,因此客户端不需要安装任何 TDengine 的库,只要客户端的开发语言支持 HTTP 协议即可。TDengine 的 RESTful API 由 [taosAdapter](../../reference/taosadapter) 提供,在使用 RESTful API 之前需要确保 `taosAdapter` 正常运行。
## 验证
......
---
sidebar_position: 1
sidebar_label: C/C++
title: C/C++ Connector
---
......
---
toc_max_heading_level: 4
sidebar_position: 2
sidebar_label: Java
title: TDengine Java Connector
description: TDengine Java 连接器基于标准 JDBC API 实现, 并提供原生连接与 REST连接两种连接器。
......
---
toc_max_heading_level: 4
sidebar_position: 5
sidebar_label: Rust
title: TDengine Rust Connector
---
......
---
sidebar_position: 3
sidebar_label: Python
title: TDengine Python Connector
description: "taospy 是 TDengine 的官方 Python 连接器。taospy 提供了丰富的 API, 使得 Python 应用可以很方便地使用 TDengine。tasopy 对 TDengine 的原生接口和 REST 接口都进行了封装, 分别对应 tasopy 的两个子模块:tasos 和 taosrest。除了对原生接口和 REST 接口的封装,taospy 还提供了符合 Python 数据访问规范(PEP 249)的编程接口。这使得 taospy 和很多第三方工具集成变得简单,比如 SQLAlchemy 和 pandas"
......
---
toc_max_heading_level: 4
sidebar_position: 6
sidebar_label: Node.js
title: TDengine Node.js Connector
---
......
---
toc_max_heading_level: 4
sidebar_position: 7
sidebar_label: C#
title: C# Connector
---
......
---
sidebar_position: 1
sidebar_label: PHP(社区贡献)
sidebar_label: PHP
title: PHP Connector
---
......
......@@ -96,7 +96,7 @@ int32_t create_stream() {
taos_free_result(pRes);
pRes = taos_query(pConn,
"create stream stream1 trigger at_once watermark 10s into outstb as select _wstart start, k from st1 partition by tbname state_window(k)");
"create stream stream1 trigger at_once watermark 10s into outstb as select _wstart start, avg(k) from st1 partition by tbname interval(10s)");
if (taos_errno(pRes) != 0) {
printf("failed to create stream stream1, reason:%s\n", taos_errstr(pRes));
return -1;
......
......@@ -44,6 +44,30 @@ enum {
)
// clang-format on
typedef struct {
TSKEY ts;
uint64_t groupId;
} SWinKey;
static inline int SWinKeyCmpr(const void* pKey1, int kLen1, const void* pKey2, int kLen2) {
SWinKey* pWin1 = (SWinKey*)pKey1;
SWinKey* pWin2 = (SWinKey*)pKey2;
if (pWin1->groupId > pWin2->groupId) {
return 1;
} else if (pWin1->groupId < pWin2->groupId) {
return -1;
}
if (pWin1->ts > pWin2->ts) {
return 1;
} else if (pWin1->ts < pWin2->ts) {
return -1;
}
return 0;
}
enum {
TMQ_MSG_TYPE__DUMMY = 0,
TMQ_MSG_TYPE__POLL_RSP,
......
......@@ -551,16 +551,17 @@ typedef struct {
} SStreamStateCur;
#if 1
int32_t streamStatePut(SStreamState* pState, const void* key, int32_t kLen, const void* value, int32_t vLen);
int32_t streamStateGet(SStreamState* pState, const void* key, int32_t kLen, void** pVal, int32_t* pVLen);
int32_t streamStateDel(SStreamState* pState, const void* key, int32_t kLen);
SStreamStateCur* streamStateGetCur(SStreamState* pState, const void* key, int32_t kLen);
SStreamStateCur* streamStateSeekKeyNext(SStreamState* pState, const void* key, int32_t kLen);
SStreamStateCur* streamStateSeekKeyPrev(SStreamState* pState, const void* key, int32_t kLen);
int32_t streamStatePut(SStreamState* pState, const SWinKey* key, const void* value, int32_t vLen);
int32_t streamStateGet(SStreamState* pState, const SWinKey* key, void** pVal, int32_t* pVLen);
int32_t streamStateDel(SStreamState* pState, const SWinKey* key);
void streamFreeVal(void* val);
SStreamStateCur* streamStateGetCur(SStreamState* pState, const SWinKey* key);
SStreamStateCur* streamStateSeekKeyNext(SStreamState* pState, const SWinKey* key);
SStreamStateCur* streamStateSeekKeyPrev(SStreamState* pState, const SWinKey* key);
void streamStateFreeCur(SStreamStateCur* pCur);
int32_t streamGetKVByCur(SStreamStateCur* pCur, void** pKey, int32_t* pKLen, void** pVal, int32_t* pVLen);
int32_t streamStateGetKVByCur(SStreamStateCur* pCur, SWinKey* pKey, const void** pVal, int32_t* pVLen);
int32_t streamStateSeekFirst(SStreamState* pState, SStreamStateCur* pCur);
int32_t streamStateSeekLast(SStreamState* pState, SStreamStateCur* pCur);
......
......@@ -652,17 +652,28 @@ int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask) {
// expand executor
if (pTask->taskLevel == TASK_LEVEL__SOURCE) {
pTask->pState = streamStateOpen(pTq->pStreamMeta->path, pTask);
if (pTask->pState == NULL) {
return -1;
}
SReadHandle handle = {
.meta = pTq->pVnode->pMeta,
.vnode = pTq->pVnode,
.initTqReader = 1,
.pStateBackend = pTask->pState,
};
pTask->exec.executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, &handle);
ASSERT(pTask->exec.executor);
} else if (pTask->taskLevel == TASK_LEVEL__AGG) {
pTask->pState = streamStateOpen(pTq->pStreamMeta->path, pTask);
if (pTask->pState == NULL) {
return -1;
}
SReadHandle mgHandle = {
.vnode = NULL,
.numOfVgroups = (int32_t)taosArrayGetSize(pTask->childEpInfo),
.pStateBackend = pTask->pState,
};
pTask->exec.executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, &mgHandle);
ASSERT(pTask->exec.executor);
......
......@@ -1281,6 +1281,42 @@ static SSDataBlock* doStreamScan(SOperatorInfo* pOperator) {
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SStreamScanInfo* pInfo = pOperator->info;
#if 0
SStreamState* pState = pTaskInfo->streamInfo.pState;
if (pState) {
printf(">>>>>>>> stream write backend\n");
SWinKey key = {
.ts = 1,
.groupId = 2,
};
char tmp[100] = "abcdefg1";
if (streamStatePut(pState, &key, &tmp, strlen(tmp) + 1) < 0) {
ASSERT(0);
}
key.ts = 2;
char tmp2[100] = "abcdefg2";
if (streamStatePut(pState, &key, &tmp2, strlen(tmp2) + 1) < 0) {
ASSERT(0);
}
key.groupId = 5;
key.ts = 1;
char tmp3[100] = "abcdefg3";
if (streamStatePut(pState, &key, &tmp3, strlen(tmp3) + 1) < 0) {
ASSERT(0);
}
char* val2 = NULL;
int32_t sz;
if (streamStateGet(pState, &key, (void**)&val2, &sz) < 0) {
ASSERT(0);
}
printf("stream read %s %d\n", val2, sz);
streamFreeVal(val2);
}
#endif
qDebug("stream scan called");
if (pTaskInfo->streamInfo.prepareStatus.type == TMQ_OFFSET__LOG) {
while (1) {
......
......@@ -15,6 +15,7 @@
#include "executorimpl.h"
#include "function.h"
#include "functionMgt.h"
#include "tcommon.h"
#include "tcompare.h"
#include "tdatablock.h"
#include "tfill.h"
......@@ -27,11 +28,6 @@ typedef enum SResultTsInterpType {
#define IS_FINAL_OP(op) ((op)->isFinal)
typedef struct SWinRes {
TSKEY ts;
uint64_t groupId;
} SWinRes;
typedef struct SPullWindowInfo {
STimeWindow window;
uint64_t groupId;
......@@ -641,7 +637,8 @@ static void doInterpUnclosedTimeWindow(SOperatorInfo* pOperatorInfo, int32_t num
setResultRowInterpo(pResult, RESULT_ROW_END_INTERP);
setNotInterpoWindowKey(pSup->pCtx, numOfExprs, RESULT_ROW_START_INTERP);
doApplyFunctions(pTaskInfo, pSup->pCtx, &pInfo->twAggSup.timeWindowData, startPos, 0, pBlock->info.rows, numOfExprs);
doApplyFunctions(pTaskInfo, pSup->pCtx, &pInfo->twAggSup.timeWindowData, startPos, 0, pBlock->info.rows,
numOfExprs);
if (isResultRowInterpolated(pResult, RESULT_ROW_END_INTERP)) {
closeResultRow(pr);
......@@ -812,7 +809,7 @@ static int32_t savePullWindow(SPullWindowInfo* pPullInfo, SArray* pPullWins) {
int32_t compareResKey(void* pKey, void* data, int32_t index) {
SArray* res = (SArray*)data;
SResKeyPos* pos = taosArrayGetP(res, index);
SWinRes* pData = (SWinRes*)pKey;
SWinKey* pData = (SWinKey*)pKey;
if (pData->ts == *(int64_t*)pos->key) {
if (pData->groupId > pos->groupId) {
return 1;
......@@ -828,7 +825,7 @@ int32_t compareResKey(void* pKey, void* data, int32_t index) {
static int32_t saveResult(int64_t ts, int32_t pageId, int32_t offset, uint64_t groupId, SArray* pUpdated) {
int32_t size = taosArrayGetSize(pUpdated);
SWinRes data = {.ts = ts, .groupId = groupId};
SWinKey data = {.ts = ts, .groupId = groupId};
int32_t index = binarySearchCom(pUpdated, size, &data, TSDB_ORDER_DESC, compareResKey);
if (index == -1) {
index = 0;
......@@ -861,8 +858,8 @@ static int32_t saveWinResult(int64_t ts, int32_t pageId, int32_t offset, uint64_
newPos->groupId = groupId;
newPos->pos = (SResultRowPosition){.pageId = pageId, .offset = offset};
*(int64_t*)newPos->key = ts;
SWinRes key = {.ts = ts, .groupId = groupId};
if (taosHashPut(pUpdatedMap, &key, sizeof(SWinRes), &newPos, sizeof(void*)) != TSDB_CODE_SUCCESS) {
SWinKey key = {.ts = ts, .groupId = groupId};
if (taosHashPut(pUpdatedMap, &key, sizeof(SWinKey), &newPos, sizeof(void*)) != TSDB_CODE_SUCCESS) {
taosMemoryFree(newPos);
}
return TSDB_CODE_SUCCESS;
......@@ -879,20 +876,20 @@ static int32_t saveResultRow(SResultRow* result, uint64_t groupId, SArray* pUpda
static void removeResults(SArray* pWins, SHashObj* pUpdatedMap) {
int32_t size = taosArrayGetSize(pWins);
for (int32_t i = 0; i < size; i++) {
SWinRes* pW = taosArrayGet(pWins, i);
taosHashRemove(pUpdatedMap, pW, sizeof(SWinRes));
SWinKey* pW = taosArrayGet(pWins, i);
taosHashRemove(pUpdatedMap, pW, sizeof(SWinKey));
}
}
int64_t getWinReskey(void* data, int32_t index) {
SArray* res = (SArray*)data;
SWinRes* pos = taosArrayGet(res, index);
SWinKey* pos = taosArrayGet(res, index);
return pos->ts;
}
int32_t compareWinRes(void* pKey, void* data, int32_t index) {
SArray* res = (SArray*)data;
SWinRes* pos = taosArrayGetP(res, index);
SWinKey* pos = taosArrayGetP(res, index);
SResKeyPos* pData = (SResKeyPos*)pKey;
if (*(int64_t*)pData->key == pos->ts) {
if (pData->groupId > pos->groupId) {
......@@ -985,8 +982,8 @@ static void hashIntervalAgg(SOperatorInfo* pOperatorInfo, SResultRowInfo* pResul
if ((!pInfo->ignoreExpiredData || !isCloseWindow(&win, &pInfo->twAggSup)) &&
inSlidingWindow(&pInfo->interval, &win, &pBlock->info)) {
updateTimeWindowInfo(&pInfo->twAggSup.timeWindowData, &win, true);
doApplyFunctions(pTaskInfo, pSup->pCtx, &pInfo->twAggSup.timeWindowData, startPos, forwardRows,
pBlock->info.rows, numOfOutput);
doApplyFunctions(pTaskInfo, pSup->pCtx, &pInfo->twAggSup.timeWindowData, startPos, forwardRows, pBlock->info.rows,
numOfOutput);
}
doCloseWindow(pResultRowInfo, pInfo, pResult);
......@@ -1025,8 +1022,8 @@ static void hashIntervalAgg(SOperatorInfo* pOperatorInfo, SResultRowInfo* pResul
doWindowBorderInterpolation(pInfo, pBlock, pResult, &nextWin, startPos, forwardRows, pSup);
updateTimeWindowInfo(&pInfo->twAggSup.timeWindowData, &nextWin, true);
doApplyFunctions(pTaskInfo, pSup->pCtx, &pInfo->twAggSup.timeWindowData, startPos, forwardRows,
pBlock->info.rows, numOfOutput);
doApplyFunctions(pTaskInfo, pSup->pCtx, &pInfo->twAggSup.timeWindowData, startPos, forwardRows, pBlock->info.rows,
numOfOutput);
doCloseWindow(pResultRowInfo, pInfo, pResult);
}
......@@ -1214,8 +1211,8 @@ static void doStateWindowAggImpl(SOperatorInfo* pOperator, SStateWindowOperatorI
}
updateTimeWindowInfo(&pInfo->twAggSup.timeWindowData, &pRowSup->win, false);
doApplyFunctions(pTaskInfo, pSup->pCtx, &pInfo->twAggSup.timeWindowData, pRowSup->startRowIndex,
pRowSup->numOfRows, pBlock->info.rows, numOfOutput);
doApplyFunctions(pTaskInfo, pSup->pCtx, &pInfo->twAggSup.timeWindowData, pRowSup->startRowIndex, pRowSup->numOfRows,
pBlock->info.rows, numOfOutput);
}
static SSDataBlock* doStateWindowAgg(SOperatorInfo* pOperator) {
......@@ -1418,7 +1415,7 @@ void doDeleteSpecifyIntervalWindow(SAggSupporter* pAggSup, SSDataBlock* pBlock,
STimeWindow win = getActiveTimeWindow(NULL, &dumyInfo, tsStarts[i], pInterval, TSDB_ORDER_ASC);
doDeleteIntervalWindow(pAggSup, win.skey, groupIds[i]);
if (pUpWins) {
SWinRes winRes = {.ts = win.skey, .groupId = groupIds[i]};
SWinKey winRes = {.ts = win.skey, .groupId = groupIds[i]};
taosArrayPush(pUpWins, &winRes);
}
}
......@@ -1445,7 +1442,7 @@ static void doClearWindows(SAggSupporter* pAggSup, SExprSupp* pSup1, SInterval*
uint64_t winGpId = pGpDatas ? pGpDatas[startPos] : pBlock->info.groupId;
bool res = doClearWindow(pAggSup, pSup1, (char*)&win.skey, sizeof(TSKEY), winGpId, numOfOutput);
if (pUpWins && res) {
SWinRes winRes = {.ts = win.skey, .groupId = winGpId};
SWinKey winRes = {.ts = win.skey, .groupId = winGpId};
taosArrayPush(pUpWins, &winRes);
}
getNextTimeWindow(pInterval, pInterval->precision, TSDB_ORDER_ASC, &win);
......@@ -1484,11 +1481,11 @@ static int32_t closeIntervalWindow(SHashObj* pHashMap, STimeWindowAggSupp* pSup,
STimeWindow win;
win.skey = ts;
win.ekey = taosTimeAdd(win.skey, pInterval->interval, pInterval->intervalUnit, pInterval->precision) - 1;
SWinRes winRe = {
SWinKey winRe = {
.ts = win.skey,
.groupId = groupId,
};
void* chIds = taosHashGet(pPullDataMap, &winRe, sizeof(SWinRes));
void* chIds = taosHashGet(pPullDataMap, &winRe, sizeof(SWinKey));
if (isCloseWindow(&win, pSup)) {
if (chIds && pPullDataMap) {
SArray* chAy = *(SArray**)chIds;
......@@ -1555,7 +1552,7 @@ static void doBuildDeleteResult(SArray* pWins, int32_t* index, SSDataBlock* pBlo
SColumnInfoData* pTsCol = taosArrayGet(pBlock->pDataBlock, START_TS_COLUMN_INDEX);
SColumnInfoData* pGroupCol = taosArrayGet(pBlock->pDataBlock, GROUPID_COLUMN_INDEX);
for (int32_t i = *index; i < size; i++) {
SWinRes* pWin = taosArrayGet(pWins, i);
SWinKey* pWin = taosArrayGet(pWins, i);
colDataAppend(pTsCol, pBlock->info.rows, (const char*)&pWin->ts, false);
colDataAppend(pGroupCol, pBlock->info.rows, (const char*)&pWin->groupId, false);
pBlock->info.rows++;
......@@ -1595,6 +1592,9 @@ static SSDataBlock* doStreamIntervalAgg(SOperatorInfo* pOperator) {
SArray* pUpdated = taosArrayInit(4, POINTER_BYTES); // SResKeyPos
_hash_fn_t hashFn = taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY);
SHashObj* pUpdatedMap = taosHashInit(1024, hashFn, false, HASH_NO_LOCK);
SStreamState* pState = pTaskInfo->streamInfo.pState;
while (1) {
SSDataBlock* pBlock = downstream->fpSet.getNextFn(downstream);
if (pBlock == NULL) {
......@@ -1639,6 +1639,35 @@ static SSDataBlock* doStreamIntervalAgg(SOperatorInfo* pOperator) {
hashIntervalAgg(pOperator, &pInfo->binfo.resultRowInfo, pBlock, MAIN_SCAN, pUpdatedMap);
}
#if 0
if (pState) {
printf(">>>>>>>> stream read backend\n");
SWinKey key = {
.ts = 1,
.groupId = 2,
};
char* val = NULL;
int32_t sz;
if (streamStateGet(pState, &key, (void**)&val, &sz) < 0) {
ASSERT(0);
}
printf("stream read %s %d\n", val, sz);
streamFreeVal(val);
SStreamStateCur* pCur = streamStateGetCur(pState, &key);
ASSERT(pCur);
while (streamStateCurNext(pState, pCur) == 0) {
SWinKey key1;
const void* val1;
if (streamStateGetKVByCur(pCur, &key1, &val1, &sz) < 0) {
break;
}
printf("stream iter key groupId:%d ts:%d, value %s %d\n", key1.groupId, key1.ts, val1, sz);
}
streamStateFreeCur(pCur);
}
#endif
pOperator->status = OP_RES_TO_RETURN;
closeIntervalWindow(pInfo->aggSup.pResultRowHashTable, &pInfo->twAggSup, &pInfo->interval, NULL, pUpdatedMap,
pInfo->pRecycledPages, pInfo->aggSup.pResultBuf);
......@@ -1857,7 +1886,7 @@ SOperatorInfo* createIntervalOperatorInfo(SOperatorInfo* downstream, SExprInfo*
}
}
pInfo->pRecycledPages = taosArrayInit(4, sizeof(int32_t));
pInfo->pDelWins = taosArrayInit(4, sizeof(SWinRes));
pInfo->pDelWins = taosArrayInit(4, sizeof(SWinKey));
pInfo->delIndex = 0;
pInfo->pDelRes = createSpecialDataBlock(STREAM_DELETE_RESULT);
initResultRowInfo(&pInfo->binfo.resultRowInfo);
......@@ -1958,8 +1987,8 @@ static void doSessionWindowAggImpl(SOperatorInfo* pOperator, SSessionAggOperator
}
updateTimeWindowInfo(&pInfo->twAggSup.timeWindowData, &pRowSup->win, false);
doApplyFunctions(pTaskInfo, pSup->pCtx, &pInfo->twAggSup.timeWindowData, pRowSup->startRowIndex,
pRowSup->numOfRows, pBlock->info.rows, numOfOutput);
doApplyFunctions(pTaskInfo, pSup->pCtx, &pInfo->twAggSup.timeWindowData, pRowSup->startRowIndex, pRowSup->numOfRows,
pBlock->info.rows, numOfOutput);
}
static SSDataBlock* doSessionWindowAgg(SOperatorInfo* pOperator) {
......@@ -2811,7 +2840,7 @@ static void rebuildIntervalWindow(SStreamFinalIntervalOperatorInfo* pInfo, SExpr
return;
}
for (int32_t i = 0; i < size; i++) {
SWinRes* pWinRes = taosArrayGet(pWinArray, i);
SWinKey* pWinRes = taosArrayGet(pWinArray, i);
SResultRow* pCurResult = NULL;
STimeWindow ParentWin = {.skey = pWinRes->ts, .ekey = pWinRes->ts + 1};
setTimeWindowOutputBuf(&pInfo->binfo.resultRowInfo, &ParentWin, true, &pCurResult, pWinRes->groupId, pSup->pCtx,
......@@ -2854,12 +2883,12 @@ int32_t getNexWindowPos(SInterval* pInterval, SDataBlockInfo* pBlockInfo, TSKEY*
return getNextQualifiedWindow(pInterval, pNextWin, pBlockInfo, tsCols, prevEndPos, TSDB_ORDER_ASC);
}
void addPullWindow(SHashObj* pMap, SWinRes* pWinRes, int32_t size) {
void addPullWindow(SHashObj* pMap, SWinKey* pWinRes, int32_t size) {
SArray* childIds = taosArrayInit(8, sizeof(int32_t));
for (int32_t i = 0; i < size; i++) {
taosArrayPush(childIds, &i);
}
taosHashPut(pMap, pWinRes, sizeof(SWinRes), &childIds, sizeof(void*));
taosHashPut(pMap, pWinRes, sizeof(SWinKey), &childIds, sizeof(void*));
}
static int32_t getChildIndex(SSDataBlock* pBlock) { return pBlock->info.childId; }
......@@ -2906,11 +2935,11 @@ static void doHashInterval(SOperatorInfo* pOperatorInfo, SSDataBlock* pSDataBloc
}
if (IS_FINAL_OP(pInfo) && isClosed && pInfo->pChildren) {
bool ignore = true;
SWinRes winRes = {
SWinKey winRes = {
.ts = nextWin.skey,
.groupId = tableGroupId,
};
void* chIds = taosHashGet(pInfo->pPullDataMap, &winRes, sizeof(SWinRes));
void* chIds = taosHashGet(pInfo->pPullDataMap, &winRes, sizeof(SWinKey));
if (isDeletedWindow(&nextWin, tableGroupId, &pInfo->aggSup) && !chIds) {
SPullWindowInfo pull = {.window = nextWin, .groupId = tableGroupId};
// add pull data request
......@@ -3038,8 +3067,8 @@ void processPullOver(SSDataBlock* pBlock, SHashObj* pMap) {
uint64_t* groupIdData = (uint64_t*)pGroupCol->pData;
int32_t chId = getChildIndex(pBlock);
for (int32_t i = 0; i < pBlock->info.rows; i++) {
SWinRes winRes = {.ts = tsData[i], .groupId = groupIdData[i]};
void* chIds = taosHashGet(pMap, &winRes, sizeof(SWinRes));
SWinKey winRes = {.ts = tsData[i], .groupId = groupIdData[i]};
void* chIds = taosHashGet(pMap, &winRes, sizeof(SWinKey));
if (chIds) {
SArray* chArray = *(SArray**)chIds;
int32_t index = taosArraySearchIdx(chArray, &chId, compareInt32Val, TD_EQ);
......@@ -3048,7 +3077,7 @@ void processPullOver(SSDataBlock* pBlock, SHashObj* pMap) {
taosArrayRemove(chArray, index);
if (taosArrayGetSize(chArray) == 0) {
// pull data is over
taosHashRemove(pMap, &winRes, sizeof(SWinRes));
taosHashRemove(pMap, &winRes, sizeof(SWinKey));
}
}
}
......@@ -3132,7 +3161,7 @@ static SSDataBlock* doStreamFinalIntervalAgg(SOperatorInfo* pOperator) {
if (pBlock->info.type == STREAM_NORMAL || pBlock->info.type == STREAM_PULL_DATA) {
pInfo->binfo.pRes->info.type = pBlock->info.type;
} else if (pBlock->info.type == STREAM_CLEAR) {
SArray* pUpWins = taosArrayInit(8, sizeof(SWinRes));
SArray* pUpWins = taosArrayInit(8, sizeof(SWinKey));
doClearWindows(&pInfo->aggSup, pSup, &pInfo->interval, pOperator->exprSupp.numOfExprs, pBlock, pUpWins);
if (IS_FINAL_OP(pInfo)) {
int32_t childIndex = getChildIndex(pBlock);
......@@ -3170,7 +3199,7 @@ static SSDataBlock* doStreamFinalIntervalAgg(SOperatorInfo* pOperator) {
getAllIntervalWindow(pInfo->aggSup.pResultRowHashTable, pUpdatedMap);
continue;
} else if (pBlock->info.type == STREAM_RETRIEVE && !IS_FINAL_OP(pInfo)) {
SArray* pUpWins = taosArrayInit(8, sizeof(SWinRes));
SArray* pUpWins = taosArrayInit(8, sizeof(SWinKey));
doClearWindows(&pInfo->aggSup, pSup, &pInfo->interval, pOperator->exprSupp.numOfExprs, pBlock, pUpWins);
removeResults(pUpWins, pUpdatedMap);
taosArrayDestroy(pUpWins);
......@@ -3385,7 +3414,7 @@ SOperatorInfo* createStreamFinalIntervalOperatorInfo(SOperatorInfo* downstream,
pInfo->ignoreExpiredData = pIntervalPhyNode->window.igExpired;
pInfo->pDelRes = createSpecialDataBlock(STREAM_DELETE_RESULT);
pInfo->delIndex = 0;
pInfo->pDelWins = taosArrayInit(4, sizeof(SWinRes));
pInfo->pDelWins = taosArrayInit(4, sizeof(SWinKey));
pInfo->pRecycledPages = taosArrayInit(4, sizeof(int32_t));
pOperator->operatorType = pPhyNode->type;
......@@ -3720,8 +3749,8 @@ int32_t updateSessionWindowInfo(SResultWindowInfo* pWinInfo, TSKEY* pStartTs, TS
}
if (pWinInfo->win.skey > pStartTs[i]) {
if (pStDeleted && pWinInfo->isOutput) {
SWinRes res = {.ts = pWinInfo->win.skey, .groupId = groupId};
taosHashPut(pStDeleted, &pWinInfo->pos, sizeof(SResultRowPosition), &res, sizeof(SWinRes));
SWinKey res = {.ts = pWinInfo->win.skey, .groupId = groupId};
taosHashPut(pStDeleted, &pWinInfo->pos, sizeof(SResultRowPosition), &res, sizeof(SWinKey));
pWinInfo->isOutput = false;
}
pWinInfo->win.skey = pStartTs[i];
......@@ -3839,8 +3868,8 @@ void compactTimeWindow(SStreamSessionAggOperatorInfo* pInfo, int32_t startIndex,
compactFunctions(pSup->pCtx, pInfo->pDummyCtx, numOfOutput, pTaskInfo);
taosHashRemove(pStUpdated, &pWinInfo->pos, sizeof(SResultRowPosition));
if (pWinInfo->isOutput) {
SWinRes res = {.ts = pWinInfo->win.skey, .groupId = groupId};
taosHashPut(pStDeleted, &pWinInfo->pos, sizeof(SResultRowPosition), &res, sizeof(SWinRes));
SWinKey res = {.ts = pWinInfo->win.skey, .groupId = groupId};
taosHashPut(pStDeleted, &pWinInfo->pos, sizeof(SResultRowPosition), &res, sizeof(SWinKey));
pWinInfo->isOutput = false;
}
taosArrayRemove(pInfo->streamAggSup.pCurWins, i);
......@@ -3902,8 +3931,8 @@ static void doStreamSessionAggImpl(SOperatorInfo* pOperator, SSDataBlock* pSData
}
pCurWin->isClosed = false;
if (pInfo->twAggSup.calTrigger == STREAM_TRIGGER_AT_ONCE && pStUpdated) {
SWinRes value = {.ts = pCurWin->win.skey, .groupId = groupId};
code = taosHashPut(pStUpdated, &pCurWin->pos, sizeof(SResultRowPosition), &value, sizeof(SWinRes));
SWinKey value = {.ts = pCurWin->win.skey, .groupId = groupId};
code = taosHashPut(pStUpdated, &pCurWin->pos, sizeof(SResultRowPosition), &value, sizeof(SWinKey));
if (code != TSDB_CODE_SUCCESS) {
longjmp(pTaskInfo->env, TSDB_CODE_QRY_OUT_OF_MEMORY);
}
......@@ -3955,8 +3984,7 @@ static void doClearSessionWindows(SStreamAggSupporter* pAggSup, SExprSupp* pSup,
int32_t step = 0;
for (int32_t i = 0; i < pBlock->info.rows; i += step) {
int32_t winIndex = 0;
SResultWindowInfo* pCurWin =
getCurSessionWindow(pAggSup, tsCols[i], INT64_MIN, gpCols[i], gap, &winIndex);
SResultWindowInfo* pCurWin = getCurSessionWindow(pAggSup, tsCols[i], INT64_MIN, gpCols[i], gap, &winIndex);
if (!pCurWin || pCurWin->pos.pageId == -1) {
// window has been closed.
step = 1;
......@@ -3981,9 +4009,9 @@ static int32_t copyUpdateResult(SHashObj* pStUpdated, SArray* pUpdated) {
if (pos == NULL) {
return TSDB_CODE_QRY_OUT_OF_MEMORY;
}
pos->groupId = ((SWinRes*)pData)->groupId;
pos->groupId = ((SWinKey*)pData)->groupId;
pos->pos = *(SResultRowPosition*)key;
*(int64_t*)pos->key = ((SWinRes*)pData)->ts;
*(int64_t*)pos->key = ((SWinKey*)pData)->ts;
taosArrayPush(pUpdated, &pos);
}
taosArraySort(pUpdated, resultrowComparAsc);
......@@ -3999,7 +4027,7 @@ void doBuildDeleteDataBlock(SHashObj* pStDeleted, SSDataBlock* pBlock, void** It
blockDataEnsureCapacity(pBlock, size);
size_t keyLen = 0;
while (((*Ite) = taosHashIterate(pStDeleted, *Ite)) != NULL) {
SWinRes* res = *Ite;
SWinKey* res = *Ite;
SColumnInfoData* pTsCol = taosArrayGet(pBlock->pDataBlock, START_TS_COLUMN_INDEX);
colDataAppend(pTsCol, pBlock->info.rows, (const char*)&res->ts, false);
SColumnInfoData* pGpCol = taosArrayGet(pBlock->pDataBlock, GROUPID_COLUMN_INDEX);
......@@ -4130,8 +4158,8 @@ static void copyDeleteWindowInfo(SArray* pResWins, SHashObj* pStDeleted) {
int32_t size = taosArrayGetSize(pResWins);
for (int32_t i = 0; i < size; i++) {
SResultWindowInfo* pWinInfo = taosArrayGet(pResWins, i);
SWinRes res = {.ts = pWinInfo->win.skey, .groupId = pWinInfo->groupId};
taosHashPut(pStDeleted, &pWinInfo->pos, sizeof(SResultRowPosition), &res, sizeof(SWinRes));
SWinKey res = {.ts = pWinInfo->win.skey, .groupId = pWinInfo->groupId};
taosHashPut(pStDeleted, &pWinInfo->pos, sizeof(SResultRowPosition), &res, sizeof(SWinKey));
}
}
......@@ -4169,14 +4197,14 @@ static SSDataBlock* doStreamSessionAgg(SOperatorInfo* pOperator) {
if (pBlock->info.type == STREAM_CLEAR) {
SArray* pWins = taosArrayInit(16, sizeof(SResultWindowInfo));
doClearSessionWindows(&pInfo->streamAggSup, &pOperator->exprSupp, pBlock, START_TS_COLUMN_INDEX, pOperator->exprSupp.numOfExprs, 0,
pWins);
doClearSessionWindows(&pInfo->streamAggSup, &pOperator->exprSupp, pBlock, START_TS_COLUMN_INDEX,
pOperator->exprSupp.numOfExprs, 0, pWins);
if (IS_FINAL_OP(pInfo)) {
int32_t childIndex = getChildIndex(pBlock);
SOperatorInfo* pChildOp = taosArrayGetP(pInfo->pChildren, childIndex);
SStreamSessionAggOperatorInfo* pChildInfo = pChildOp->info;
doClearSessionWindows(&pChildInfo->streamAggSup, &pChildOp->exprSupp, pBlock, START_TS_COLUMN_INDEX, pChildOp->exprSupp.numOfExprs,
0, NULL);
doClearSessionWindows(&pChildInfo->streamAggSup, &pChildOp->exprSupp, pBlock, START_TS_COLUMN_INDEX,
pChildOp->exprSupp.numOfExprs, 0, NULL);
rebuildTimeWindow(pInfo, pWins, pBlock->info.groupId, pOperator->exprSupp.numOfExprs, pOperator);
}
taosArrayDestroy(pWins);
......@@ -4578,7 +4606,8 @@ SStateWindowInfo* getStateWindow(SStreamAggSupporter* pAggSup, TSKEY ts, uint64_
}
int32_t updateStateWindowInfo(SArray* pWinInfos, int32_t winIndex, TSKEY* pTs, uint64_t groupId,
SColumnInfoData* pKeyCol, int32_t rows, int32_t start, bool* allEqual, SHashObj* pSeDeleted) {
SColumnInfoData* pKeyCol, int32_t rows, int32_t start, bool* allEqual,
SHashObj* pSeDeleted) {
*allEqual = true;
SStateWindowInfo* pWinInfo = taosArrayGet(pWinInfos, winIndex);
for (int32_t i = start; i < rows; ++i) {
......@@ -4599,9 +4628,8 @@ int32_t updateStateWindowInfo(SArray* pWinInfos, int32_t winIndex, TSKEY* pTs, u
}
if (pWinInfo->winInfo.win.skey > pTs[i]) {
if (pSeDeleted && pWinInfo->winInfo.isOutput) {
SWinRes res = {.ts = pWinInfo->winInfo.win.skey, .groupId = groupId};
taosHashPut(pSeDeleted, &pWinInfo->winInfo.pos, sizeof(SResultRowPosition), &res,
sizeof(SWinRes));
SWinKey res = {.ts = pWinInfo->winInfo.win.skey, .groupId = groupId};
taosHashPut(pSeDeleted, &pWinInfo->winInfo.pos, sizeof(SResultRowPosition), &res, sizeof(SWinKey));
pWinInfo->winInfo.isOutput = false;
}
pWinInfo->winInfo.win.skey = pTs[i];
......@@ -4614,14 +4642,14 @@ int32_t updateStateWindowInfo(SArray* pWinInfos, int32_t winIndex, TSKEY* pTs, u
return rows - start;
}
static void doClearStateWindows(SStreamAggSupporter* pAggSup, SSDataBlock* pBlock,
SHashObj* pSeUpdated, SHashObj* pSeDeleted) {
static void doClearStateWindows(SStreamAggSupporter* pAggSup, SSDataBlock* pBlock, SHashObj* pSeUpdated,
SHashObj* pSeDeleted) {
SColumnInfoData* pTsColInfo = taosArrayGet(pBlock->pDataBlock, START_TS_COLUMN_INDEX);
SColumnInfoData* pGroupColInfo = taosArrayGet(pBlock->pDataBlock, GROUPID_COLUMN_INDEX);
TSKEY* tsCol = (TSKEY*)pTsColInfo->pData;
bool allEqual = false;
int32_t step = 1;
uint64_t* gpCol = (uint64_t*) pGroupColInfo->pData;
uint64_t* gpCol = (uint64_t*)pGroupColInfo->pData;
for (int32_t i = 0; i < pBlock->info.rows; i += step) {
int32_t winIndex = 0;
SStateWindowInfo* pCurWin = getStateWindowByTs(pAggSup, tsCol[i], gpCol[i], &winIndex);
......@@ -4665,13 +4693,12 @@ static void doStreamStateAggImpl(SOperatorInfo* pOperator, SSDataBlock* pSDataBl
char* pKeyData = colDataGetData(pKeyColInfo, i);
int32_t winIndex = 0;
bool allEqual = true;
SStateWindowInfo* pCurWin =
getStateWindow(pAggSup, tsCols[i], groupId, pKeyData, &pInfo->stateCol, &winIndex);
winRows = updateStateWindowInfo(pAggSup->pCurWins, winIndex, tsCols, groupId, pKeyColInfo,
pSDataBlock->info.rows, i, &allEqual, pStDeleted);
SStateWindowInfo* pCurWin = getStateWindow(pAggSup, tsCols[i], groupId, pKeyData, &pInfo->stateCol, &winIndex);
winRows = updateStateWindowInfo(pAggSup->pCurWins, winIndex, tsCols, groupId, pKeyColInfo, pSDataBlock->info.rows,
i, &allEqual, pStDeleted);
if (!allEqual) {
appendOneRow(pAggSup->pScanBlock, &pCurWin->winInfo.win.skey, &pCurWin->winInfo.win.ekey,
GROUPID_COLUMN_INDEX, &groupId);
appendOneRow(pAggSup->pScanBlock, &pCurWin->winInfo.win.skey, &pCurWin->winInfo.win.ekey, GROUPID_COLUMN_INDEX,
&groupId);
taosHashRemove(pSeUpdated, &pCurWin->winInfo.pos, sizeof(SResultRowPosition));
deleteWindow(pAggSup->pCurWins, winIndex, destroyStateWinInfo);
continue;
......@@ -4682,8 +4709,8 @@ static void doStreamStateAggImpl(SOperatorInfo* pOperator, SSDataBlock* pSDataBl
}
pCurWin->winInfo.isClosed = false;
if (pInfo->twAggSup.calTrigger == STREAM_TRIGGER_AT_ONCE) {
SWinRes value = {.ts = pCurWin->winInfo.win.skey, .groupId = groupId};
code = taosHashPut(pSeUpdated, &pCurWin->winInfo.pos, sizeof(SResultRowPosition), &value, sizeof(SWinRes));
SWinKey value = {.ts = pCurWin->winInfo.win.skey, .groupId = groupId};
code = taosHashPut(pSeUpdated, &pCurWin->winInfo.pos, sizeof(SResultRowPosition), &value, sizeof(SWinKey));
if (code != TSDB_CODE_SUCCESS) {
longjmp(pTaskInfo->env, TSDB_CODE_QRY_OUT_OF_MEMORY);
}
......
......@@ -358,7 +358,7 @@ int32_t streamDispatchAllBlocks(SStreamTask* pTask, const SStreamDataBlock* pDat
FAIL_SHUFFLE_DISPATCH:
if (pReqs) {
for (int32_t i = 0; i < vgSz; i++) {
taosArrayDestroy(pReqs[i].data);
taosArrayDestroyP(pReqs[i].data, taosMemoryFree);
taosArrayDestroy(pReqs[i].dataLen);
}
taosMemoryFree(pReqs);
......
......@@ -13,175 +13,104 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "executor.h"
#include "streamInc.h"
#include "ttimer.h"
SStreamState* streamStateOpen(char* path, SStreamTask* pTask) {
SStreamState* pState = taosMemoryCalloc(1, sizeof(SStreamState));
if (pState == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return NULL;
}
char statePath[200];
sprintf(statePath, "%s/%d", path, pTask->taskId);
if (tdbOpen(statePath, 16 * 1024, 1, &pState->db) < 0) {
goto _err;
}
// open state storage backend
if (tdbTbOpen("state.db", sizeof(int32_t), -1, NULL, pState->db, &pState->pStateDb) < 0) {
goto _err;
}
pState->pOwner = pTask;
return pState;
_err:
if (pState->pStateDb) tdbTbClose(pState->pStateDb);
if (pState->db) tdbClose(pState->db);
taosMemoryFree(pState);
return NULL;
}
void streamStateClose(SStreamState* pState) {
tdbCommit(pState->db, &pState->txn);
tdbTbClose(pState->pStateDb);
tdbClose(pState->db);
taosMemoryFree(pState);
}
int32_t streamStateBegin(SStreamState* pState) {
if (tdbTxnOpen(&pState->txn, 0, tdbDefaultMalloc, tdbDefaultFree, NULL, TDB_TXN_WRITE | TDB_TXN_READ_UNCOMMITTED) <
0) {
// clang-format off
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "taos.h"
int32_t init_env() {
TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
if (pConn == NULL) {
return -1;
}
if (tdbBegin(pState->db, &pState->txn) < 0) {
TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 2");
if (taos_errno(pRes) != 0) {
printf("error in create db, reason:%s\n", taos_errstr(pRes));
return -1;
}
return 0;
}
taos_free_result(pRes);
int32_t streamStateCommit(SStreamState* pState) {
if (tdbCommit(pState->db, &pState->txn) < 0) {
#if 0
pRes = taos_query(pConn, "create database if not exists abc2 vgroups 20");
if (taos_errno(pRes) != 0) {
printf("error in create db, reason:%s\n", taos_errstr(pRes));
return -1;
}
memset(&pState->txn, 0, sizeof(TXN));
if (tdbTxnOpen(&pState->txn, 0, tdbDefaultMalloc, tdbDefaultFree, NULL, TDB_TXN_WRITE | TDB_TXN_READ_UNCOMMITTED) <
0) {
taos_free_result(pRes);
#endif
pRes = taos_query(pConn, "use abc1");
if (taos_errno(pRes) != 0) {
printf("error in use db, reason:%s\n", taos_errstr(pRes));
return -1;
}
if (tdbBegin(pState->db, &pState->txn) < 0) {
taos_free_result(pRes);
pRes = taos_query(pConn, "create stable if not exists st1 (ts timestamp, k int) tags(a int)");
if (taos_errno(pRes) != 0) {
printf("failed to create super table st1, reason:%s\n", taos_errstr(pRes));
return -1;
}
return 0;
}
taos_free_result(pRes);
int32_t streamStateAbort(SStreamState* pState) {
if (tdbAbort(pState->db, &pState->txn) < 0) {
pRes = taos_query(pConn, "create table if not exists tu1 using st1 tags(1)");
if (taos_errno(pRes) != 0) {
printf("failed to create child table tu1, reason:%s\n", taos_errstr(pRes));
return -1;
}
memset(&pState->txn, 0, sizeof(TXN));
if (tdbTxnOpen(&pState->txn, 0, tdbDefaultMalloc, tdbDefaultFree, NULL, TDB_TXN_WRITE | TDB_TXN_READ_UNCOMMITTED) <
0) {
taos_free_result(pRes);
pRes = taos_query(pConn, "create table if not exists tu2 using st1 tags(2)");
if (taos_errno(pRes) != 0) {
printf("failed to create child table tu2, reason:%s\n", taos_errstr(pRes));
return -1;
}
if (tdbBegin(pState->db, &pState->txn) < 0) {
taos_free_result(pRes);
pRes = taos_query(pConn, "create table if not exists tu3 using st1 tags(3)");
if (taos_errno(pRes) != 0) {
printf("failed to create child table tu3, reason:%s\n", taos_errstr(pRes));
return -1;
}
return 0;
}
int32_t streamStatePut(SStreamState* pState, const void* key, int32_t kLen, const void* value, int32_t vLen) {
return tdbTbUpsert(pState->pStateDb, key, kLen, value, vLen, &pState->txn);
}
int32_t streamStateGet(SStreamState* pState, const void* key, int32_t kLen, void** pVal, int32_t* pVLen) {
return tdbTbGet(pState->pStateDb, key, kLen, pVal, pVLen);
}
int32_t streamStateDel(SStreamState* pState, const void* key, int32_t kLen) {
return tdbTbDelete(pState->pStateDb, key, kLen, &pState->txn);
}
SStreamStateCur* streamStateGetCur(SStreamState* pState, const void* key, int32_t kLen) {
SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
if (pCur == NULL) return NULL;
tdbTbcOpen(pState->pStateDb, &pCur->pCur, NULL);
taos_free_result(pRes);
int32_t c;
tdbTbcMoveTo(pCur->pCur, key, kLen, &c);
if (c != 0) {
taosMemoryFree(pCur);
return NULL;
}
return 0;
}
int32_t streamGetKVByCur(SStreamStateCur* pCur, void** pKey, int32_t* pKLen, void** pVal, int32_t* pVLen) {
return tdbTbcGet(pCur->pCur, (const void**)pKey, pKLen, (const void**)pVal, pVLen);
}
int32_t streamStateSeekFirst(SStreamState* pState, SStreamStateCur* pCur) {
//
return tdbTbcMoveToFirst(pCur->pCur);
}
int32_t streamStateSeekLast(SStreamState* pState, SStreamStateCur* pCur) {
//
return tdbTbcMoveToLast(pCur->pCur);
}
SStreamStateCur* streamStateSeekKeyNext(SStreamState* pState, const void* key, int32_t kLen) {
SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
if (pCur == NULL) {
return NULL;
int32_t create_stream() {
printf("create stream\n");
TAOS_RES* pRes;
TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
if (pConn == NULL) {
return -1;
}
int32_t c;
if (tdbTbcMoveTo(pCur->pCur, key, kLen, &c) < 0) {
taosMemoryFree(pCur);
return NULL;
pRes = taos_query(pConn, "use abc1");
if (taos_errno(pRes) != 0) {
printf("error in use db, reason:%s\n", taos_errstr(pRes));
return -1;
}
if (c > 0) return pCur;
taos_free_result(pRes);
if (tdbTbcMoveToNext(pCur->pCur) < 0) {
taosMemoryFree(pCur);
return NULL;
pRes = taos_query(pConn,
"create stream stream1 trigger at_once watermark 10s into outstb as select _wstart start, avg(k) from st1 partition by tbname interval(10s)");
if (taos_errno(pRes) != 0) {
printf("failed to create stream stream1, reason:%s\n", taos_errstr(pRes));
return -1;
}
return pCur;
taos_free_result(pRes);
taos_close(pConn);
return 0;
}
SStreamStateCur* streamStateSeekKeyPrev(SStreamState* pState, const void* key, int32_t kLen) {
SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
if (pCur == NULL) {
return NULL;
}
int32_t c;
if (tdbTbcMoveTo(pCur->pCur, key, kLen, &c) < 0) {
taosMemoryFree(pCur);
return NULL;
}
if (c < 0) return pCur;
if (tdbTbcMoveToPrev(pCur->pCur) < 0) {
taosMemoryFree(pCur);
return NULL;
int main(int argc, char* argv[]) {
int code;
if (argc > 1) {
printf("env init\n");
code = init_env();
}
return pCur;
}
int32_t streamStateCurNext(SStreamState* pState, SStreamStateCur* pCur) {
//
return tdbTbcMoveToNext(pCur->pCur);
}
int32_t streamStateCurPrev(SStreamState* pState, SStreamStateCur* pCur) {
//
return tdbTbcMoveToPrev(pCur->pCur);
create_stream();
}
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